amp guts

Saw this small home brew tweed clone on eBay (http://www.ebay.com/itm/230785728848?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649), supposedly 5f2 Princeton,and there did not appear to be an eyelet board, like most of the vintage ones I've seen. How is this stuff done without an eyelet board, what is everything anchored to, the metal chassis?
http://i.ebayimg.com/00/s/MTIwMFgxNjAw/$(KGrHqZHJD!E90n0wDZqBPo)TG1-WQ~~60_35.JPG

It is called point-to-point construction. Uses the tube socket terminals, pots, terminal strips to solder parts to. Originally that is how tube circuits were made.

My point to point amp.

http://i406.photobucket.com/albums/pp142/printer2_photo/guitar%20amp/15CW5SE-2.jpg

Saw this small home brew tweed clone on eBay (http://www.ebay.com/itm/230785728848?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649), supposedly 5f2 Princeton,and there did not appear to be an eyelet board, like most of the vintage ones I've seen. How is this stuff done without an eyelet board, what is everything anchored to, the metal chassis?
http://i.ebayimg.com/00/s/MTIwMFgxNjAw/$(KGrHqZHJD!E90n0wDZqBPo)TG1-WQ~~60_35.JPG

It's a common way to wire very simple circuits with no PCB; you just solder one piece to another and the rigidity of the wire itself keeps them in place. Of course, wobbly, soft wires have to be avoided, stiff solid core ones preferred. You always have the endpoints anchored to the chassis somehow... Connectors, knobs and stuff.

Giacomo

EDIT: oops, didn't see the post above, sorry for mostly repeating it.

It's a common way to wire very simple circuits with no PCB; you just solder one piece to another and the rigidity of the wire itself keeps them in place. Of course, wobbly, soft wires have to be avoided, stiff solid core ones preferred. You always have the endpoints anchored to the chassis somehow... Connectors, knobs and stuff.

Giacomo

EDIT: oops, didn't see the post above, sorry for mostly repeating it.

A lot of times you will see "speghetti" insulation (clear thin tubing) slid onto the component leads. The only drawback to point to point is sometimes you have to remove 3 or 4 components to get down to where you can replace a bad one.

I made a Tweed vibro champ out of an old silvertone organ amp once and thought I was going to pull what little hair I have left right out of my head.

Cool, thanks, I pulled the trigger on this, never had a tweed circuit amp before, and hope it sounds good. If not, maybe I'll upgrade the 5e3 cab with a 5e3 chassis later.

It's a common way to wire very simple circuits with no PCB; you just solder one piece to another and the rigidity of the wire itself keeps them in place. Of course, wobbly, soft wires have to be avoided, stiff solid core ones preferred. You always have the endpoints anchored to the chassis somehow... Connectors, knobs and stuff.

Giacomo

EDIT: oops, didn't see the post above, sorry for mostly repeating it.

Beat you to it. :mrgreen:

Cool, thanks, I pulled the trigger on this, never had a tweed circuit amp before, and hope it sounds good. If not, maybe I'll upgrade the 5e3 cab with a 5e3 chassis later.

Other than they can be inconvenient to work on there is nothing wrong with them. I built mine in a small chassis and just the other day we were talking about reducing hum in the amp (mine is a 5F2A type circuit) and I found replacing a capacitor reduced my hum to a low level. I ended up taking out the capacitor I had and wiring the new one with wire leads but mechanically I had to tie wrap it to a bolt as it would not fit in the original position. Now I have to put an indicator light on as I have left it on over night a couple of times because it is no longer humming to me.